Briar patches are thickets comprised of the overgrowth of plants, such as blackberry or raspberry bushes, that are both unsightly and potentially harmful due to their thorny vines. Common vines that ...
The home guard: Police suggest 30 thorny bushes homeowners could plant to discourage ‘lazy’ garden thieves
Red Leaf Barberry Hedge. (5 shrubs for 30$). This thorny, brightly colored shrub is the perfect choice to create a barrier against unwanted traffic or to deter deer. Left to grow naturally it has 5-7' spread and height but can be pruned and maintained at a much smaller size.
2 for $9.99 each Blue Fragrant Lavender,mounds growing 18-24" tall. in partially shady or very sunny spaces. Cut English lavender for warm indoor displays that gently perfume rooms. - http://www.springhillnursery.com
Barberries are a widely adaptable dwarf deciduous shrub which can be used as a low hedge or a colorful accent. It's mature height is about 4-5 feet and requires full sun for best coloration (it will remain mostly green in shade). It is a bushy compact shrub that keeps its shape with very little pruning or trimming.